20155702940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{503}}^1\times {\mathrm{28219}}^1$

素因数の和:28802

約数の個数: 48

約数和(自身を含む): 43009989120

約数和(自身を除く): 22854286180

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 503, 710, 1006, 1420, 2012, 2515, 5030, 10060, 28219, 35713, 56438, 71426, 112876, 141095, 142852, 178565, 282190, 357130, 564380, 714260, 2003549, 4007098, 8014196, 10017745, 14194157, 20035490, 28388314, 40070980, 56776628, 70970785, 141941570, 283883140, 1007785147, 2015570294, 4031140588, 5038925735, 10077851470, 20155702940]

約数ペア:

[(1, 20155702940), (2, 10077851470), (4, 5038925735), (5, 4031140588), (10, 2015570294), (20, 1007785147), (71, 283883140), (142, 141941570), (284, 70970785), (355, 56776628), (503, 40070980), (710, 28388314), (1006, 20035490), (1420, 14194157), (2012, 10017745), (2515, 8014196), (5030, 4007098), (10060, 2003549), (28219, 714260), (35713, 564380), (56438, 357130), (71426, 282190), (112876, 178565), (141095, 142852)]